2023 NEC Changes: Overcurrent Protection, Overvoltage Protection, and Grounding and Bonding

Are you up to code? This interactive online course covers the changes in Articles 240, 242, 245, and 250 of the 2023 National Electrical Code®. In this course, we’ll discuss the protection of conductors, standard ampere ratings, listing requirements, selective coordination, interrupting ratings, location on-premises, and replacement trip units. Additionally, we’ll review objectionable current, explain the revision to impedance-grounded systems, and define impedance-grounded systems.

At the end of this course, you will be able to: 

• Discuss the overcurrent protection requirements of 240.4 
• Explain why 10 ampere circuit breakers are now recognized in 240.6 
• Identify the listing requirements of 240.7 
• Recall the new selective coordination requirements in 240.11 
• State the requirements for interrupting ratings in 240.16 
• List the revisions to the access requirements of 240.24 
• Recall the listing requirements for fuse reducers in 240.60 
• List the requirements for replacement trip units in 240.89 
• Discuss the prohibition of reconditioned equipment of 242.2 
• State the indication requirements for SPDs in 242.9 
• Discuss the scope of the new article 245 
• Explain the clarifications to objectionable current in 250.6 
• Recall the changes for impedance grounded systems in 250.36 and Article 100 
• List the requirements for routing grounding electrode conductors in 250.64 
• Discuss the changes for GEC terminations at electrodes in 250.70 
• Explain the revisions for hazardous location bonding in 250.100 
• List the instances where metal enclosures are allowed as the effective ground-fault current path in 250.109 
• Recall the requirements for ice makers in 250.114 
• List the changes for flexible stainless-steel raceways in 250.118 
• State the allowances for replacement switches in 250.130 
• Discuss the requirements for existing ranges and dryers in 250.140 
• Explain the clarifications for the requirements for EGCs in enclosures in 250.148